what is av4us

As of my last knowledge update in October 2023, "AV4US" does not correspond to a widely recognized term, organization, or concept in popular databases or discussions. It's possible that it could refer to a specific project, a product, an acronym, or even something more niche that has emerged after my last update. If you have a specific context or more details about "AV4US," I can try to help you better understand it or provide relevant information!